Miele CM63 “refill Beans” problem

Hey Guys, My Miele CM63 clogs the funnel that goes from grinder to brew unit, resulting in the coffee not reaching the brew unit. I have to clean the funnel with a zip tie once a week to prevent this from happening. Once cleaned, it works fine for about a week.

Grind setting is at 3/5.

Does anyone know a fix or the cause of this? The coffee grounds that get stuck in the funnel is dry.